Improvement in automatic check-valves for gas-machines



, hereby declare that UNIT D STATES THEOPHILUS VAN KANNEL AND,LOVIAS D.OHIO; SAID VAN KANNEL ASSIGNOR TowsLEY, 0E oINcINNATI, T0 SAID TowsLEY.

IMPROVEMENT IN AUTOMATIC CHECK-VALVES FOR GAS-MACHINES.

Specification forming part of Letters Patent No. 169,746, dated November9, 1875 application filed August 31, 1875.

To all whom it may concern:

Be it known that we, THEOPHILUS VAN KANNEL and LovIAs D. TowsLEY, bothof Cincinnati, Hamilton county, State of Ohio, have invented a new anduseful Automatic Check-Valve for Gas-Machines; and we do the followingis a full, clear, and exact description of the same, reference being hadto the annexed drawing, making a part of this specification.

The nature of our invention relates to that class of gas-machineswherein gasoline or any other similar fluid is used for making gas, thesame being first brought to a vapor under pressure by heat.

The object of this invention is to prevent the gas-making material fromentering the gas-holder in the fluid state, while it permits it to enterin the gaseous state, the action of the valve being automatic, and notdependcut on any other part of the machine.

In the drawing, A A is the shell or housing. B is the inlet-pipe, whichleads to the retort, and G the pipe leading through the mixing-valve tothe gas-holder. The lower portion "of A is perforated by one straighthole to receive the stem cl of the movable floating ball D, while theupper portion of part A is also drilled with. a conical seat,-a, toreceive the corresponding conical valve (Z and guiding-stem d The latteris filed triangular in order to provide an outlet for the gas when thevalve is off its seat, while the inlet to the valve is through theperforations In operation our invention is as follows: The gasoline orgas, as the case may be, has its inlet through pipe B. Should the heatunder the retort be sufficient to turn the oil into gas, the ball D willfall, so as to take the valve d off its seat, allowing it to escape intopipe 0, where it passes to the mixing-valve, and then to the gas-holder.under the retort gets sutficiently low to allow the gas to return to thefluid state, as soon as its surface arrives at the center of the ball Dit buoys it up, closing the valve d on its seat c thus preventing thefluid from escaping until the heat under the retort has again changed itinto gas.

It will thus be seen that gas alone can pass freely, while the valve isa complete check against its escape in the fluid state.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

A float, D, carrying the valve d to and from the seat a all beinginolosed in the shell A A, for checking a fluid and permitting the sameto escape in a gaseous state, as and for the purpose herein set forth.

T. VAN KANNEL. L. D. TOWSLEY.

Attest A. V. STEWART, L. PREHN.

In case the heat A

